# 四大基本数据结构中,list,dict,set是可变的,tuple是不可变的
# 四大基本数据结构中,list,tuple是有序的,dict,set是无序的
# 四大基本数据结构中,dict的key和set取值只能使用可hash（不可更改）的值

list_1 = []
tuple_1 = (1, 3)
dict_1 = {}
set_1 = {1, 2}
list_2 = [1, 2.0, '1\'5n', True, None, b'a', list_1, tuple_1, dict_1, set_1]
tuple_2 = (1, 2.0, '1\'5n', True, None, b'a', list_1, tuple_1, dict_1, set_1)
dict_2 = {1: 2, 2.0: 3 / 9, '1\'5n': '''3"45''', True: False, None: None, b'a': b'a', "list_1": list_1,
          tuple_1: tuple_1, "dict_1": dict_1, "set_1": set_1}
set_2 = {1, 2.0, '1\'5n', True, None, b'a', "list_1", tuple_1, "dict_1", "set_1"}
print((type(list_1), type(tuple_1), type(dict_1), type(set_1)), list_2, tuple_2, dict_2, set_2, sep='\n')
